./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix006.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix006.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 557c1f2fab4f7585e181c0a50145e0f2efcca52cad7f093489c012afed407365 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:24:04,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:24:04,773 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:24:04,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:24:04,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:24:04,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:24:04,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:24:04,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:24:04,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:24:04,801 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:24:04,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:24:04,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:24:04,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:24:04,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:24:04,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:24:04,803 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:24:04,804 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:24:04,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:24:04,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:24:04,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:24:04,805 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 557c1f2fab4f7585e181c0a50145e0f2efcca52cad7f093489c012afed407365 [2025-03-09 06:24:05,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:24:05,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:24:05,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:24:05,028 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:24:05,028 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:24:05,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix006.opt.i [2025-03-09 06:24:06,256 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d159156c/29ffe2c3a7f8435f94ae7ca504da209f/FLAG534cfa78d [2025-03-09 06:24:06,534 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:24:06,535 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix006.opt.i [2025-03-09 06:24:06,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d159156c/29ffe2c3a7f8435f94ae7ca504da209f/FLAG534cfa78d [2025-03-09 06:24:06,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d159156c/29ffe2c3a7f8435f94ae7ca504da209f [2025-03-09 06:24:06,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:24:06,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:24:06,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:24:06,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:24:06,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:24:06,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:24:06" (1/1) ... [2025-03-09 06:24:06,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23166479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:06, skipping insertion in model container [2025-03-09 06:24:06,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:24:06" (1/1) ... [2025-03-09 06:24:06,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:24:06,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:24:06,929 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:24:06,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:24:07,007 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:24:07,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07 WrapperNode [2025-03-09 06:24:07,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:24:07,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:24:07,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:24:07,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:24:07,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,044 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 145 [2025-03-09 06:24:07,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:24:07,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:24:07,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:24:07,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:24:07,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,057 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,070 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 06:24:07,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:24:07,082 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:24:07,082 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:24:07,082 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:24:07,083 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (1/1) ... [2025-03-09 06:24:07,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:24:07,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:24:07,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:24:07,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 06:24:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 06:24:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 06:24:07,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:24:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 06:24:07,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:24:07,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:24:07,152 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:24:07,269 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:24:07,271 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:24:07,624 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:24:07,624 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:24:07,825 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:24:07,826 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:24:07,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:24:07 BoogieIcfgContainer [2025-03-09 06:24:07,828 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:24:07,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:24:07,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:24:07,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:24:07,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:24:06" (1/3) ... [2025-03-09 06:24:07,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6954bf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:24:07, skipping insertion in model container [2025-03-09 06:24:07,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:24:07" (2/3) ... [2025-03-09 06:24:07,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6954bf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:24:07, skipping insertion in model container [2025-03-09 06:24:07,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:24:07" (3/3) ... [2025-03-09 06:24:07,835 INFO L128 eAbstractionObserver]: Analyzing ICFG mix006.opt.i [2025-03-09 06:24:07,847 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:24:07,850 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix006.opt.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-03-09 06:24:07,850 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:24:07,898 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 06:24:07,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2025-03-09 06:24:07,950 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2025-03-09 06:24:07,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:24:07,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-09 06:24:07,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2025-03-09 06:24:07,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2025-03-09 06:24:07,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:24:07,978 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26d14350, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:24:07,978 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-03-09 06:24:07,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:24:07,987 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-03-09 06:24:07,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:24:07,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:24:07,988 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:24:07,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:24:07,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:24:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash 721174356, now seen corresponding path program 1 times [2025-03-09 06:24:07,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:24:07,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337758175] [2025-03-09 06:24:07,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:24:07,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:24:08,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:24:08,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:24:08,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:24:08,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:24:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:24:08,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:24:08,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337758175] [2025-03-09 06:24:08,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337758175] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:24:08,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:24:08,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:24:08,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025060257] [2025-03-09 06:24:08,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:24:08,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:24:08,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:24:08,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:24:08,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:24:08,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-03-09 06:24:08,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:08,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:24:08,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-03-09 06:24:08,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:24:09,380 INFO L124 PetriNetUnfolderBase]: 7682/10984 cut-off events. [2025-03-09 06:24:09,380 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-03-09 06:24:09,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22076 conditions, 10984 events. 7682/10984 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 59671 event pairs, 2802 based on Foata normal form. 0/9669 useless extension candidates. Maximal degree in co-relation 22065. Up to 8611 conditions per place. [2025-03-09 06:24:09,452 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 55 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2025-03-09 06:24:09,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 62 transitions, 257 flow [2025-03-09 06:24:09,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:24:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:24:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-03-09 06:24:09,463 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6747967479674797 [2025-03-09 06:24:09,465 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 83 transitions. [2025-03-09 06:24:09,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 62 transitions, 257 flow [2025-03-09 06:24:09,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 252 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:24:09,476 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2025-03-09 06:24:09,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2025-03-09 06:24:09,484 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2025-03-09 06:24:09,484 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2025-03-09 06:24:09,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:09,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:24:09,485 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:24:09,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:24:09,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:24:09,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:24:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash -2086340735, now seen corresponding path program 1 times [2025-03-09 06:24:09,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:24:09,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673231917] [2025-03-09 06:24:09,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:24:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:24:09,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:24:09,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:24:09,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:24:09,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:24:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:24:09,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:24:09,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673231917] [2025-03-09 06:24:09,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673231917] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:24:09,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:24:09,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:24:09,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492567039] [2025-03-09 06:24:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:24:09,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:24:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:24:09,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:24:09,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:24:09,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-03-09 06:24:09,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:09,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:24:09,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-03-09 06:24:09,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:24:10,427 INFO L124 PetriNetUnfolderBase]: 6293/8985 cut-off events. [2025-03-09 06:24:10,428 INFO L125 PetriNetUnfolderBase]: For 535/535 co-relation queries the response was YES. [2025-03-09 06:24:10,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20156 conditions, 8985 events. 6293/8985 cut-off events. For 535/535 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 47347 event pairs, 2287 based on Foata normal form. 0/8406 useless extension candidates. Maximal degree in co-relation 20145. Up to 6611 conditions per place. [2025-03-09 06:24:10,492 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 52 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2025-03-09 06:24:10,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 264 flow [2025-03-09 06:24:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:24:10,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:24:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-03-09 06:24:10,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5060975609756098 [2025-03-09 06:24:10,494 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 83 transitions. [2025-03-09 06:24:10,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 264 flow [2025-03-09 06:24:10,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:24:10,498 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 110 flow [2025-03-09 06:24:10,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2025-03-09 06:24:10,500 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2025-03-09 06:24:10,500 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 110 flow [2025-03-09 06:24:10,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:10,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:24:10,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:24:10,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:24:10,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:24:10,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:24:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2086340734, now seen corresponding path program 1 times [2025-03-09 06:24:10,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:24:10,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454854705] [2025-03-09 06:24:10,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:24:10,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:24:10,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:24:10,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:24:10,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:24:10,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:24:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:24:10,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:24:10,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454854705] [2025-03-09 06:24:10,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454854705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:24:10,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:24:10,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:24:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16741989] [2025-03-09 06:24:10,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:24:10,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:24:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:24:10,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:24:10,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:24:10,615 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-03-09 06:24:10,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:10,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:24:10,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-03-09 06:24:10,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:24:11,237 INFO L124 PetriNetUnfolderBase]: 5258/7508 cut-off events. [2025-03-09 06:24:11,237 INFO L125 PetriNetUnfolderBase]: For 1303/1303 co-relation queries the response was YES. [2025-03-09 06:24:11,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16627 conditions, 7508 events. 5258/7508 cut-off events. For 1303/1303 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 38697 event pairs, 1684 based on Foata normal form. 0/7413 useless extension candidates. Maximal degree in co-relation 16615. Up to 3226 conditions per place. [2025-03-09 06:24:11,266 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 71 selfloop transitions, 7 changer transitions 3/84 dead transitions. [2025-03-09 06:24:11,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 376 flow [2025-03-09 06:24:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:24:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:24:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2025-03-09 06:24:11,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6585365853658537 [2025-03-09 06:24:11,268 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 110 flow. Second operand 4 states and 108 transitions. [2025-03-09 06:24:11,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 376 flow [2025-03-09 06:24:11,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:24:11,272 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 131 flow [2025-03-09 06:24:11,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2025-03-09 06:24:11,273 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2025-03-09 06:24:11,273 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 131 flow [2025-03-09 06:24:11,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:11,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:24:11,274 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:24:11,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:24:11,274 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:24:11,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:24:11,275 INFO L85 PathProgramCache]: Analyzing trace with hash 412541964, now seen corresponding path program 1 times [2025-03-09 06:24:11,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:24:11,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639447285] [2025-03-09 06:24:11,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:24:11,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:24:11,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 06:24:11,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 06:24:11,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:24:11,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:24:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:24:11,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:24:11,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639447285] [2025-03-09 06:24:11,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639447285] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:24:11,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:24:11,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:24:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430657616] [2025-03-09 06:24:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:24:11,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:24:11,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:24:11,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:24:11,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:24:11,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-03-09 06:24:11,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:11,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:24:11,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-03-09 06:24:11,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:24:11,943 INFO L124 PetriNetUnfolderBase]: 4942/7052 cut-off events. [2025-03-09 06:24:11,943 INFO L125 PetriNetUnfolderBase]: For 3030/3030 co-relation queries the response was YES. [2025-03-09 06:24:11,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16823 conditions, 7052 events. 4942/7052 cut-off events. For 3030/3030 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 36592 event pairs, 1614 based on Foata normal form. 84/7125 useless extension candidates. Maximal degree in co-relation 16810. Up to 3226 conditions per place. [2025-03-09 06:24:11,961 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2025-03-09 06:24:11,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 78 transitions, 355 flow [2025-03-09 06:24:11,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:24:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:24:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2025-03-09 06:24:11,962 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.526829268292683 [2025-03-09 06:24:11,962 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 131 flow. Second operand 5 states and 108 transitions. [2025-03-09 06:24:11,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 78 transitions, 355 flow [2025-03-09 06:24:11,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 78 transitions, 331 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-09 06:24:11,968 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2025-03-09 06:24:11,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2025-03-09 06:24:11,968 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2025-03-09 06:24:11,968 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2025-03-09 06:24:11,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-03-09 06:24:11,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-03-09 06:24:11,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:24:11,972 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-09 06:24:11,975 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:24:11,975 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:24:11,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:24:11 BasicIcfg [2025-03-09 06:24:11,978 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:24:11,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:24:11,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:24:11,979 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:24:11,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:24:07" (3/4) ... [2025-03-09 06:24:11,980 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:24:11,982 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-09 06:24:11,982 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-09 06:24:11,982 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-09 06:24:11,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2025-03-09 06:24:11,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-09 06:24:11,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-09 06:24:11,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:24:12,035 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:24:12,035 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:24:12,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:24:12,036 INFO L158 Benchmark]: Toolchain (without parser) took 5475.48ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 104.2MB in the beginning and 158.7MB in the end (delta: -54.6MB). Peak memory consumption was 437.5MB. Max. memory is 16.1GB. [2025-03-09 06:24:12,036 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:24:12,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.69ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 79.7MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 06:24:12,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.50ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 77.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:24:12,038 INFO L158 Benchmark]: Boogie Preprocessor took 35.39ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 74.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:24:12,038 INFO L158 Benchmark]: IcfgBuilder took 746.45ms. Allocated memory is still 142.6MB. Free memory was 74.2MB in the beginning and 84.3MB in the end (delta: -10.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2025-03-09 06:24:12,039 INFO L158 Benchmark]: TraceAbstraction took 4148.55ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 83.6MB in the beginning and 167.1MB in the end (delta: -83.5MB). Peak memory consumption was 445.3MB. Max. memory is 16.1GB. [2025-03-09 06:24:12,039 INFO L158 Benchmark]: Witness Printer took 56.77ms. Allocated memory is still 637.5MB. Free memory was 167.1MB in the beginning and 158.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:24:12,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.69ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 79.7MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.50ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 77.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.39ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 74.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 746.45ms. Allocated memory is still 142.6MB. Free memory was 74.2MB in the beginning and 84.3MB in the end (delta: -10.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4148.55ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 83.6MB in the beginning and 167.1MB in the end (delta: -83.5MB). Peak memory consumption was 445.3MB. Max. memory is 16.1GB. * Witness Printer took 56.77ms. Allocated memory is still 637.5MB. Free memory was 167.1MB in the beginning and 158.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 70 edges, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:24:12,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE